Original HPI shock tuning spring rear, suitable for HPI Baja and Rovan Baja models.

With these shock absorber springs you can adjust the chassis ideally to get a good balance and grip.

These springs are by means of the color indicated the various hardnesses.

The colors are:

• Yellow: Soft
• Black: Medium
• Blue: Hard

Technical Data:

• Inner diameter: Ø23 mm
• Wire thickness: Ø2,3 mm
• Coils: 17,5
• Length: 155 mm